milvus/pkg/util/hardware/mem_info.go

54 lines
1.4 KiB
Go

// Copyright (C) 2019-2020 Zilliz. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//go:build !darwin && !openbsd && !freebsd
// +build !darwin,!openbsd,!freebsd
package hardware
import (
"os"
"github.com/shirou/gopsutil/v3/process"
"github.com/sirupsen/logrus"
"go.uber.org/zap"
"github.com/milvus-io/milvus/pkg/log"
)
var proc *process.Process
func init() {
var err error
proc, err = process.NewProcess(int32(os.Getpid()))
if err != nil {
panic(err)
}
// avoid to output a lot of error logs from cgroups package
logrus.SetLevel(logrus.PanicLevel)
}
// GetUsedMemoryCount returns the memory usage in bytes.
func GetUsedMemoryCount() uint64 {
memInfo, err := proc.MemoryInfoEx()
if err != nil {
log.Warn("failed to get memory info", zap.Error(err))
return 0
}
// sub the shared memory to filter out the file-backed map memory usage
return memInfo.RSS - memInfo.Shared
}